Bedstead.



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APPLICATION II L E D 0 O T 8 1 9 l 0.

EEEEEEEEEEEEEE J". A. KEMMLER.

BEDSTEAD.

APPLICATION FILED OCT 8, 1910.

1,018, 1 95. v. Patented Feb. 20, 1912.

2 sums-$111121 2.

' III/III VIII/III rlllll jmlllllllllllllllllIlllllllllll! L i I I 4o as"f/ v WITNESSES p INVENTOR m7 04 JOHN A. KEMMLER BY HIS ATTORNEY UNITEDSTATES JOHN A. KEMMLECR, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR 0FONE-HALF TO OTTO KLOPFER. 0F PHILADELPHIA, PENNSYLVANIA.

BEDSTEAD.

Specification of Letters Patent.

Application filed October a, 1910. Serial No. 585,986.

to reduce the size of the bed frame for storage orother purposes,'or forpermitting swinging movement of the mattress support. The bed also has apivoted mattress support which permits raising and lowering of the heador foot portions of the mattress, or

both, and the bed is providedwith a turn-- table which can be raised andlowered and which permits swinging of the mattress support to anydesired position required for the comfort of the occupant of the bed, orto facilitate access to 'all' portions of the bed by an attendant orattendants.

The spring structure of the bed comprises a great number of independentelastic units,

so that any portion of the mattress can readily yield to pressurewithout affecting any other portion of the same. The bed is alsoprovided with means for supporting, in an elevated position, the arm orleg of a patient when effective treatment requires such support.

In the accompanying drawingsFigure.1 is a perspective view of a bedconstructed in accordance with my invention, the mat,- tress beingremoved and the head and foot pieces of the bed being also showndetached from the fixed frame; Fig. 2 is a longitudinal section of thebed; Flg. 3 is a transverse section of the same; Fig.4 is a sideelevation of part of the bed illustrating the elevated arm or legsupport, and Fig. 5 is an enlarged section of the lower portion of oneof the corner posts of the bed frame.

The fixed frame of the bed comprises four corner posts 1, which areconnected to ther by longitudinal side bars 2, the latter eingpreferably of angular cross section and havmg their lower webs securedby-brackets 3 on the corner posts and their-vertical webs bent aroundsaid corner posts, as shown a 4, so as to stiifenand strengthen theconnection between the posts and the side bars. The corner posts arealso connected by transverse braces 5 and 6 whereby a rigid permanentframework for the bed is insured.

' The corner posts are tubular, and, at the top, form sockets for thereception of studs 7 on the head and foot pieces 9 and 10 of PatentedFeb.20,1912.

the bed frame, so that the said head and foot pieces can be readily.applied to or removed from the fixed frame when it, is desired to reducethe size of the bed frame for storage or transportation or to swing themattress-carrying structure of the bed as hereinafterset forth, or totransform the bed into a couch. The studs 7 may constitute the lowerends of the bent tubes of which the head and foot pieces are mainlycomposed, said head and foot pieces having, in addition to these benttubes, transverse braces 11 provided at their opposite ends with sleeves12 through which the bent tubes pass and to which they are suitablysecured.

The lower portion of each corner post receives a bushing 1 which has anannular groove for the reception of the inner end of a retaining screw1', whereby the bushing is swiveled to the post and is prevented fromdropping when the postis ralsed. (See Fig. 5.) The bushing 1 has, in thebottom, a

socket which receives and partially envelopsj a ball 1, which can turnin the socket so as to permit the bed to be readily moved in anydirection. 7

Upon the horizontal flanges of the angular side bars 2 of'the bed frame,rest lon tudinal bars 13, which are connected transverse bars 14, saidlongitudinal bars havin lugs 15 upon which normally rest the side bars16 of the mattress-supporting frame, said side bars being connected bytransverse bars 17. The mattress frame is divided into head and footsections, the side bars of each section being pivoted, to upwardlyprojecting lugs 19 on the side bars '13 of the bottom frame, as shown inFig. 1,

so that either head or foot' section can have an upwardinclinationiinparted to it when it is desired to raise either the .heador the feet,,or both, of the occupant of the bed. Such raising movementis effected by arms 20 on shafts 21, as shown in Fig. 2, the arms actingon the undersides of the side bars 16v of the mattress-carrying frame,and, the shafts being adapted to bearings in the lugs 15 on the bars 13,one end of each shaft proiecting into or through a slot 22 in one of theside bars 2 of the fined frame of the bed, and being constructed for thereception of a suitable crank whereby itmay be turned so as to raise orlower the arms 20. It the shafts are shorter the slotting of the sidebars 2 will not be necessary. Each shaft is provided with a ratchetwheel 23 with which engages a pawl 24 to prevent the descent oftlie arms20 after they have been raised, the pawl. being released from engagement with the ratchet wheel when it is desired to lower the arms. Othermeans oi? operating the arms 20, may, however, be adopted withoutdeparting from my inven tion.

The spring structure of the bed consists of a number of endless belts orbands 25, of rubber, spring steel or other elastic material, theseendless belts or bands passing around shafts 26, one at each side of themattresscarrying frame, and these shafts being free to turn in brackets2! on the side frames 16, as shown in Fig. 2. An elastic support is thusprovided for every portion or" the mattress, and the latter is. tree toyield to pres sure at any point without corresponding depression of anyother portion of "the mattress. be traveling endless belts also providefor the ready sliding ot the mattress into position from either side ofthe bed, or the ready removal of the mattress from either side of thebed, which is a valuable iteature in invalids beds, where it is oftennecessary to move the patient with as little disturbance as possible,and this can be most readily accomplished by moving the mat tress withthe patient upon it.

Certain of the cross bars 14 of the lower frame of the bed rest normallyupon a plate 31 which is pivotally mounted upon the upper end of a rack32, the latter being vertically guided by means of transverse bars 33which connect the opposite side bars of the fixed frame of the bed, asshown in Figs. 2 and 3. The rack 82 engages with a pinion 3st carried bya transverse shaft which is adapted to hearings in plates 36 dependingfrom the side bars 2, as shown in Fig. 3, one end of this shaft beingconstructed for the reception or a suitable crank handle ,whereby it maybe turned so as to cause the pinion 3-1, by engagement with the rack 32,to raise or lower the plate 31 and the bed frame resting thereupon. litdesired, a ratchet wheel and pawl similar to the wheel 23 and pawl 24:,or other available means, may be used to prevent accidental descent ofthe rack after the same has been raised.

Vnen the rack has been raised so that the i,ois,iss

side bars 13 of the movable bed frame are above the side bars 2 of thefixed -frame, the elevated frame can be turned to any desired position,the pivoted plate 31 serving as a turntable for this purpose. Withoutmoving the fixed frame of the bed, therefore, the occupant of the bedmay be moved into any position which comfort requires, or whch may bemost convenient for a physician, surgeon, nurse, or other attendant tomake an examination of, or to wait upon, the patient, or perform anoperation.

In order to permit of the swinging of the bed in the mannerdescribed,the head and foot sections t) and 10 can be readily removed.

It frequently happens that it is desirable to support one or both of thearms or legs of the patient in a raised position, and for this purpose Iremove the head or foot piece of the bed frame, or both of them, andapply to one or more of the corner posts a swinging post 37 which has,at its upper end, a bent arm 39 projecting over the bed and providedwith a sliding sleeve 40, which carries a sling tl upon which an arm orleg of the patient can be supported, the swinging adjustment of the arm39 in connection with the longitudinal adjustment ot the sleeve 4Opermitting such a range of move ment ofthe sling 41 over the bed as tomeet all requirements.

I do not herein claim the construction of mattress support herein shownand described, as the same constitutes the subject of a separateapplication filed by me on the sixth day of December, 1911, Serial No.664,228.

I claim:

1. The combination, in a. bed, ct fixed frame, a turntable mountedthereon so as to be vertically movable, and a bed frame resting uponsaid turntable so as to be tree to swing when itis raised above thelimits of the fixed frame.

' 2. The combination, in a bed, or a fixed frame, a vertically movableturntable carried thereby, and a bed frame mounted upon said turntableso as to be free to swing when it is raised above the limits of thefixed :trame, the latter having removable head and foot pieces in orderto permit such swinging movement.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

JOHN A. KEhilMLER.

Witnesses:

'CHAS. BENTLEY COLLINS,

KATE A. Brenna.

